An Archery Test Rig Made Using Computer Aided Design free essay sample

To achieve the project objective, the test rig structure must be design and suitable for place the archery testing apparatus. We need to develop tools that can test the efficiency in archery equipment. The arrows were made of pine and consisted of a main shaft and about 15–20 centimeter (6–8 inches) long fore shaft with a flint point. This led the commercial development of new forms of bow including the modern recurve and compound bow. These modern forms are now dominant in modern Western archery while traditional bows are in a minority. In the 1980s, the skills of traditional archery were revived by American enthusiasts, and combined with the new scientific understanding. As we know, test rig machine that is use in industrial is very expensive in the market and some way need to be build by engine performance analysis based on functionality of power supply. Hence, our test rig been replaced with modern one where its materials very cheap and easy to find in market. Some sketches software had used like Solidworks to draft out the shape of our archery test rig. Materials selection also included in this designed process. Variable height and angle will be given at various speed by the stretch of bow’s string to see whether performance of archery will decrease or increase. Here, we can analyze at which arrow speed is the optimum of performance from this small mechanical. So, some losses like power and fuel can be decrease. AKNOWLEDGEMENT In the name of Allah, the Most Benevolent and the most Merciful. All the praise and blessing be upon Prophet Muhammad S. A. W.. Every sincere appreciation and gratitude is only to God. Only by His Kindness and Guidance that this project work report is finally completed . In preparing this report, we have in contact with many people and academicians. They had contributed toward my understanding, thought, and also guidance. In particular, we wish to express my sincere appreciation to our main lecturer, Mr. Mohd Azrul Hisham Bin Mohd Adib for his valuable guidance, advice and continuous encouragement, constructive criticism and suggestion throughout this project. Without his continued support and interest, this project work would not have been the same as presented here. My sincere also extends to all our beloved family especially our parents, because if it’s not of their prayer and support we would not be here and done this project work. Moreover, we would like to thanks for all our colleagues and other who has provides assistance at various occasions. Their view tips are useful indeed in helping us to achieve doing this project. Because of their courageous, we can still stand to complete this project. Hence, to all people that direct or indirectly involve accomplishing our project that we were been sincerely thankful. To design small test rig for archery’s equipment game. ii. To test a performance of the test rig of the archery’s equipment efficiencies that is the bow and arrow. iii. Survey to mechanical engineering laboratories and also to shop market. iv. To design small mechanical test rig using Solidworks software. v. To collect and select cheapest components and materials of test rig. vi. Trying to think of a cheap material and good quality to be used as the primary material in test rigs. vii. Design a multifunction test rig structure, means that, there are other components can be added in the future because of the extra spaces. viii. To conduct a simple analysis of the design of the test rig and to set up the full design in Solidworks. II. LITERATURE REVIEW i. INTRODUCTION This chapter will briefly explain about basic concept of archery’s test rig, foundation of test rig performance testing, the importance of test rig performance testing, development of test rig performance testing, principle of jack and a few related studies and journals that have been done by current researchers. All this information is important before furthering to the analysis and study later. ii. BASIC CONCEPT OF TEST RIG PERFORMANCE Archery test rig performance characteristics are convenient graphical presentation of archery test rig performance. They are constructed from the data obtained during actual test runs of the test rig and are particularly useful in comparing the performance of one bow and arrow with that of another. In this section some of the important performance characteristics of the test rig are discussed. It is to be noted that there is a certain speed, within the speed range of particular length of string stretched, at which force applied that is the length of string stretched will be the maximum. At this point, the maximum speed can therefore be exerted on the bow. For all practical purpose, the spring constant or bow capacity to do work also will maximum at this point. As the speed of the arrow is increased above this speed the quantity of the indicated time will decrease. However, the work output of the test rig increases with the speed due to longer length is executed per spring stretched. It should be note that the external air resistance will continue to increase with increased arrow speed until some point is reached where the air resistance almost can be negligible due to rapid movement of speed per second. Test rig are so designed that the maximum speed applied point is reached within various angle and height of the test rig. Increase in speed applied means that the increased targeting can be added per unit time increasing the work output. iii. FOUNDATION OF TEST RIG PERFORMANCE TESTING Test rig performance is really a relative term. Normally it is represented by typical characteristic curves which are functions of testing at some variable of some situation and for our case is archery game. The term performance usually means how well a system designed is doing its job in relation to the input energy or how effectively it is provides useful work in relation to some other comparable industrial test rig machines. Most of the testing of test rig for their performance characteristics takes place under laboratory condition. The test rig is connected to a mechanical-based devices such as jack, spring and usual lift up mechanism by lifting the height of the steel in particular joint part. However, the performance characteristics of work, speed versus string stretched, degree of angle, height of devices of bow and arrow are recorded. There are so many types of industrial test rig used but using automation to quickly perform measurements and evaluate the test results. Principle that we used is mainly just simple mechanism that involve physics law and design it using Solidworks software. Our design of test rig operation is to allow the casing the arrow to swing freely with various variables that we figure out in this evaluation. The reaction string stretched various length, L, which is exactly equivalent to the speed measured on a level speed per time, ? , from the line section of the bow there are angle elevated, ?. The height of the test rig also can be organized. This restrains the attach casing of bow’s holder from revolving, or the speed and work would not be affected. Then, there are several factors that must considered in evaluating the performance of the test rig. Most of them are maximum work or speed available at each length string stretched within the useful particular of variable. iv. THE IMPORTANCE OF TEST RIG PERFORMANCE TESTING Today the most common power source is the well-known in industrial test rig machine. This type of test rig machine has been the choice due to efficient and accurate result in testing equipment for an example. For out invention may become natural choice due to low cost and portable properties. The portable characteristics shown may be easy because does not any electrical supply due to mechanical works only use in our test rig and easy to moves by just man-power. Industrial test rig machine as we know it today is not able to comply with future emission demands due to its massive cost and power used not very appropriate for some minority field. However, in the future manufactures must come up with new cost-efficient test rig technologies that still deliver the same or improved performance for customer satisfaction. III. MARKET SURVEY Test rig is an apparatus used for assessing the performance of a piece of mechanical or electrical equipment. In our case is to assessing the performance of archery’s equipment that is the bow and arrow. The experiment can be undergoing when we test how far the arrow can shoot in such length per time in particular length of string stretched. Example of test rig used in industrial field: * Aircraft Research Association Wind Tunnel Testing Facility at Bedford, UK. Detail design for the upgrade of their existing transonic wind tunnel. * Rolls Royce – Aero Engine Test Facility at Derby, UK. Design, supply and site installation of a range of specialist fabricated gas catchers for use while testing jet engine reverse thrust. * Babcock Marine – Devonport Naval Dockyard at Plymouth, UK. Provision of test facilities to allow training of key personnel involved in the nuclear submarine decommissioning programmed. As an addition, from a long-term perspective, the most important sector linking Turkey to the global economy is manufacturing. The share of manufactured goods in the total exports of Turkey increased from 37% in 1980 to 93% in 2009. Increase in the volume of foreign trade between 2002-2008 is also remarkable. $87 billion volume of foreign trade in 2002 rose at an annual rate of 25%, to reach $334 billion in 2008, $243 billion in 2009. This shown that test rig machine is very important to test some equipment. In archery manufacturing, the efficiencies for the bow and arrow to working simultaneously to shoot the longest with accurate moment and high speed is required for an excellent product. Platts is a leading global provider of energy and metals information and the world’s foremost source of price assessments in the physical energy markets. Since 1909, Platts has enabled the markets to operate with transparency and efficiency, and helped traders, risk managers, analysts, and industry leaders make better trading and business decisions. Platts Report: The aluminum alloy market – strong but beset with uncertainty – examines in detail activity throughout the sector and beyond, in Europe, the US and Asia over the past few months and helps bring focus to the outlook of Q1 2012. Comparison of Al and steel Global Aluminum Market to Reach 71. 2 Million Tons by 2018, According to New Report by Global Industry Analysts, Inc. GIA announces the release of a comprehensive global report on the Aluminum markets. The global market for Aluminum is forecast to reach 71. 2 million tons by the year 2018. Major factors driving growth in the Aluminum market include increasing demand for the metal in developing countries, lower per capita consumption of Aluminum in emerging markets, increasing applications of Aluminum in various sectors, increasing regulations in the automotive sector that are driving use of Aluminum, and recovery in demand from end-use segments post-recession. Asia-Pacific represents the largest regional market for aluminum worldwide, as stated by the new market research report on Aluminum. China and India are emerging as the major drivers of global growth in consumption of aluminum. Europe represents the second largest regional market worldwide, followed by the US. Growth in the global aluminum market is projected to be driven by the Rest of World market, which includes the Middle East and Africa. The regional market is projected to post a compounded annual growth rate of 11. 1% during the analysis period. Extruded Products represents the largest market segment for aluminum. However, Rolled Products are projected to spearhead growth in the global aluminum market. Our suggestion is strongly to use Aluminium alloy as a material for our test rig. The characterized by a relatively low density (2. g/cm3 as compare to 7. 9g/cm3 for steel), high resistance to corrosion in some common environments. Our test rig is showing portable properties that allow this to be use even in hot field, including the ambient atmosphere it can resist form corrosive oxygen content in natural environment. Many of this alloys are easily in the process of fabrication virtue to high ductility. The mechanical strength of aluminium can may be enhanced by cold work and by alloying with another metal or non-metal. Aluminum Alloy Product Description Specifications: Tensile Strength(psi): 83000 Yield Strength(psi): 72000 In Figure above that is the advance industrial test rig machine for testing the car door system. Basically our design is inspired by above design but more less cost and in simplify form. We eventually make a portable test rig that can be brought to any places. Testing facilities and test rigs come in many forms and are used within a broad spectrum of industries. They perform a variety of key functions from product validation through to the training and development of operators. The benefits from our design of test rig: ) The material used is easy to find in market and very popular in making of industrial machine. We are suggesting aluminum alloy due to high strength that is more mechanical properties shown in steel. b) Complete bespoke design and supply of unique test rigs to suit individual archery player specified requirements. c) Modification and upgrades to existing test facilities. d) Specialist components for integration into new test equipment. e) Shop assembly and proving of specific test rigs. f) In recent years we could have successfully completed a number of high profile projects involving test equipment. g) Globalization. Ongoing liberalization of international financial and commercial system. i) Foreign investors’ being directed to the fields accelerating technological-social dynamics in archery. j) Rapid development and increase in effective use of information technologies and innovation. k) Technological developments. l) Increase in the size and purchasing capacity of domestic market. m) Richness of renewable and alternative energy sources. n) Development of competitive new business models. o) Development of institutionalization and corporation culture. p) Coming into prominence of the partnerships between countries. ) Increasing importance of added value product production, quality and efficiency of archery’s bow and arrow. r) Increasing of the information based (producing and utilizing information) competitive advantage. s) Increasing demand for new, high-quality and different products in the global markets with low cost. t) Contribution of the positive developments related to envir onment and climate changes to the competitiveness. CHAPTER 2 METHODOLOGY I. PLAN TO DESIGN THE PRODUCT The actual construction was very similar to the preliminary design. The end test rig, when fully assembled. The mechanism is the height can be change by requirement of user. There are two blocks that are used for joints of supporting another holder of the arrow as well as the traction rope length u bow in the spring in the valve use to draw and release the bow string when want shoot. The angle of the bow can also be changed by using the ball and socket as our knees. There is another part that supports the ball and socket is attached to one of the blocks that support the horizontal position of the bow string pullers. The height of this test rig can be changed under by jack at the bottom part of the test rig. Jack with rotor will be rolled over by man-power only and it will lift the top part of the test rig. In the preliminary design two supporter were described below in our drawing, master spring switch length and a socket and ball joint in that can joint the bow with the spring switch length . In the actual design, these 2 parts were combined into a single part switch that also has a pull/push holder- feature. Many features were added to aid in the setup and tear down of the test stand. The upper part and the lower part both have straight plane that come in contact with the base, and at each of these points there is a single ? n bolt. At the base of each upper 2 block supporter and after the jack assembly there are plane quick that can be disconnects which allow them to be separated from the rest of the structure. The electrical connection is not exist at all in this test rig. All these features allow for the test stand to be assembled and disassembled in approximately 10 minutes. Actua l Test Rig Picture shown below: Door testing for its joints and locking setup Testing. Small testing setup installed on seats for complete cycle testing of all for doors of the car. Calculation of door closing and opening speed with the accurate door displacement by servomotor. Reports and data can be visualized on remote PC outside Car. The torsion fatigue test rig (TFTR) was constructed to experimentally characterize the fatigue behaviour of materials that fail due to oscillating shear stresses. It consists of a base, hydraulic rotary actuator, and torque cell. Given the horizontal configuration of the rig, light weight mechanical adapters were designed to interface with the torsion bar specimens to minimize the interference of bending moments on the tests results. The adapters are essentially custom designed collet fixtures with base flanges for mounting, and they use off-the-shelf collets and clamping nuts to retain the specimen and transmit torque. Tests are generally carried out in torque controlled mode and the prescribed torque levels/amplitudes are controlled through commercial software. In this case of our test rig, the speed can be evaluated by the length of string stretched in such angle specified. The height also can be determined in such way by jack illustrated mechanism. Our design of test rig operation is to allow the casing the arrow to swing freely with various variables that we figure out in this evaluation. The reaction string stretched various length, L, which is exactly equivalent to the speed measured on a level speed per time, ? , from the line section of the bow there are angle elevated, ?. The height of the test rig also can be organized. This restrains the attach casing of bow’s holder from revolving, or the speed and work would not be affected. Then, there are several factors that must considered in evaluating the performance of the test rig.